Well, it is easier if you have done a recent WaterTribe event and your tracking info is still valid.
When you log in and click the Spot/inReach Setup tab it will either load the information you have already submitted for the current event OR it will load the tracking info from your most recent event. If the data is still valid, you click on Submit and your old info will be loaded into your current event.
Note that it matches your WaterTribe name to captain or crew to find the most recent event. If some things have changed, you may have to cut and paste and/or eliminate one of the links.
Fair Warning: Since I don't have a testing team available, you guys are my beta testers. If you have any issues, please send me an email including your WaterTribe name and what happened.